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    Now satellites are helping to forecast（预报）the weather. They are in space, and they can reach any part of the world. The satellites take pictures of the atmosphere, because this is where the weather forms. They send these pictures to the weather stations. So meteorologists（气象学家）can see the weather of any part of the world. From the pictures, the scientists can often say how the weather will change.
    Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures, the meteorologists compare them with earlier ones. Perhaps they may find that the clouds have changed during the last few hours. This may mean that the weather on the ground may soon change, too. In their next weather forecast, the meteorologists can say this.
    So the weather satellites are a great help to the meteorologists. Before satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for three or five days. Soon, perhaps, they may be able to forecast the weather for a week or more ahead.
    小题1:Satellites travel _____________.
    A．in spaceB．in the atmosphere
    C．above the groundD．above space
    小题2:Why do we use the weather satellites to take pictures of the atmosphere? Because __________.
    A．the weather satellites can do it easily
    B．clouds form there
    C．the weather forms there
    D．the pictures can forecast the weather
    小题3:Meteorologists forecast the weather __________.
    A．when they have received satellite pictures
    B．after they have compared new satellite pictures with earlier ones
    C．before they received satellite pictures
    D．during they study satellite pictures
    小题4:Maybe we’ll soon be able to forecast the weather for ________.
    A．one dayB．two days
    C．five daysD．seven days or even longer
    小题5:The main idea of this passage is that satellites are now used in _________.
    A．taking pictures of the atmosphere
    B．receiving pictures of the atmosphere
    C．doing other work in many ways
    D．weather forecasting

    小题1:A
    小题2:C
    小题3:B
    小题4:D
    小题5:D

    试题解析:本文大意：现在卫星帮助预报天气 ，它们在太空里，能接触到世界的任一角落。卫星拍大气的照片，因为天气是在那儿形成的。卫星把照片发送到气象站。从照片上，科学家们能判断天气会如何变化。如今，在六十个国家里有近五百个气象站接收照片。接收到新照片，气象学家们与之前的照片对比。现在气象卫星对预报3-5天的，也许不久的将来，他们可以能够预测一周或更长时间的天气。
    小题1:细节理解题。根据They are in space它们在太空里，可知答案选D。
    小题2:细节理解题。根据The satellites take pictures of the atmosphere, because this is where the weather forms. 卫星拍大气的照片，因为天气是在那儿形成的，可知答案选C。
    小题3:细节理解题。根据From the pictures, the scientists can often say how the weather will change.从照片上，科学家们能判断天气会如何变化，可知答案选B。
    小题4:细节理解题。根据 Soon, perhaps, they may be able to forecast the weather for a week or more ahead.也许不久，他们可以能够预测一周或更长时间的天气，可知答案选D。
    小题5:主旨大意题。根据Now satellites are helping to forecast（预报）the weather.现在卫星帮助预报天气 ，可知答案选D.
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